merge revision(s) 62990:

	Ignore file separator from tmpfile/tmpdir name.

	From: SHIBATA Hiroshi <hsbt@ruby-lang.org>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@62995 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

5 files changed, 51 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 75a8066635..105c914255 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Mar 28 19:29:03 2018  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
+
+	Ignore file separator from tmpfile/tmpdir name.
+
 Wed Mar 28 19:24:20 2018  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	dir.c: check NUL bytes
diff --git a/lib/tmpdir.rb b/lib/tmpdir.rb
index e4df93c2d0..61eac3ba61 100644
--- a/lib/tmpdir.rb
+++ b/lib/tmpdir.rb
@@ -109,8 +109,10 @@ class Dir
     def make_tmpname((prefix, suffix), n)
       prefix = (String.try_convert(prefix) or
                 raise ArgumentError, "unexpected prefix: #{prefix.inspect}")
+      prefix = prefix.delete("#{File::SEPARATOR}#{File::ALT_SEPARATOR}")
       suffix &&= (String.try_convert(suffix) or
                   raise ArgumentError, "unexpected suffix: #{suffix.inspect}")
+      suffix &&= suffix.delete("#{File::SEPARATOR}#{File::ALT_SEPARATOR}")
       t = Time.now.strftime("%Y%m%d")
       path = "#{prefix}#{t}-#{$$}-#{rand(0x100000000).to_s(36)}".dup
       path << "-#{n}" if n
diff --git a/test/test_tempfile.rb b/test/test_tempfile.rb
index 21edf39776..eba139fe25 100644
--- a/test/test_tempfile.rb
+++ b/test/test_tempfile.rb
@@ -352,5 +352,31 @@ puts Tempfile.new('foo').path
     f.close if f && !f.closed?
     File.unlink path if path
   end
-end
 
+  TRAVERSAL_PATH = Array.new(Dir.pwd.split('/').count, '..').join('/') + Dir.pwd + '/'
+
+  def test_open_traversal_dir
+    expect = Dir.glob(TRAVERSAL_PATH + '*').count
+    t = Tempfile.open([TRAVERSAL_PATH, 'foo'])
+    actual = Dir.glob(TRAVERSAL_PATH + '*').count
+    assert_equal expect, actual
+  ensure
+    t.close!
+  end
+
+  def test_new_traversal_dir
+    expect = Dir.glob(TRAVERSAL_PATH + '*').count
+    t = Tempfile.new(TRAVERSAL_PATH + 'foo')
+    actual = Dir.glob(TRAVERSAL_PATH + '*').count
+    assert_equal expect, actual
+  ensure
+    t.close!
+  end
+
+  def test_create_traversal_dir
+    expect = Dir.glob(TRAVERSAL_PATH + '*').count
+    Tempfile.create(TRAVERSAL_PATH + 'foo')
+    actual = Dir.glob(TRAVERSAL_PATH + '*').count
+    assert_equal expect, actual
+  end
+end
diff --git a/test/test_tmpdir.rb b/test/test_tmpdir.rb
index 4fc4bca4d5..c9e85aeae2 100644
--- a/test/test_tmpdir.rb
+++ b/test/test_tmpdir.rb
@@ -56,4 +56,21 @@ class TestTmpdir < Test::Unit::TestCase
       assert_kind_of(String, d)
     }
   end
+
+  TRAVERSAL_PATH = Array.new(Dir.pwd.split('/').count, '..').join('/') + Dir.pwd + '/'
+  TRAVERSAL_PATH.delete!(':') if /mswin|mingw/ =~ RUBY_PLATFORM
+
+  def test_mktmpdir_traversal
+    expect = Dir.glob(TRAVERSAL_PATH + '*').count
+    Dir.mktmpdir(TRAVERSAL_PATH + 'foo')
+    actual = Dir.glob(TRAVERSAL_PATH + '*').count
+    assert_equal expect, actual
+  end
+
+  def test_mktmpdir_traversal_array
+    expect = Dir.glob(TRAVERSAL_PATH + '*').count
+    Dir.mktmpdir([TRAVERSAL_PATH, 'foo'])
+    actual = Dir.glob(TRAVERSAL_PATH + '*').count
+    assert_equal expect, actual
+  end
 end
diff --git a/version.h b/version.h
index 632aa0934c..8066b1f44d 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.3.7"
 #define RUBY_RELEASE_DATE "2018-03-28"
-#define RUBY_PATCHLEVEL 451
+#define RUBY_PATCHLEVEL 452
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 3